on Spirituous Liquors. 44,1 
up again to 60 °, the same ; from 6o° to ioo° it was found to 
be 233,5 — 1,5 = 232, and the contraction in cooling down 
again from 100° to 6o° the same ; the total expansion 397, 
differing from ours 0,55 of a division, in defect. 
After the above experiments, the instruments were emptied 
of the spirit ; and another day, preparatory to a repetition of 
the experiments, they were charged again with some of the 
same spirit that was used before, and the results found to be 
as follow. 
Having brought them to the temperature of 6 o°, I found 
the spirit in the long instrument to stand 3 above o, and in 
the short instrument 5 below o. They were then cooled 
down to 30° of temperature ; when the spirit in the long 
instrument was found to sink to 161,5, an d hi the short in- 
strument to 167,5. They were afterwards brought back 
again to 6o° of temperature ; when the spirit in the long in- 
strument stood 3 above o, as before, but in the short instru- 
ment 5,5 below o. I then heated them up to ioo°, and it 
stood in the long instrument at 234, and in the short instru- 
ment at 226, above o. They were again brought to the 
temperature of 6o° ; when it was found to stand in the long 
instrument at o, and in the short instrument at 8 below o. 
From the above experiments it appears, that the contraction 
by the long instrument, in cooling down from 6o° to 30°, is 
161,5+3 = 164,5, an d the expansion in heating up again to 
6 o°, the same. • In heating up from 6o° to ioo°, 234 — 3 = 231 ; 
but the contraction in cooling down again from ioo° to 6o°, 
234 ; the mean is 232,5, and the total expansion from 30° to 
ioo°=397, differing from the experiments by weight 0,55 of 
a division, in defect : but if no mean be taken, the deficiency 
